Home / 15,414.14-23,009.68-13,545.80

Finding the Fourth Proportional to 15,414.14, 23,009.68 and 13,545.80

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Solution

The fourth proportional to 15,414.14, 23,009.68 and 13,545.80 is: 20,220.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,414.14 : 23,009.68 = 13,545.80 : x
  2. Step 2: Convert to fraction form
    15,414.14/23,009.68 = 13,545.80/x
  3. Step 3: Cross multiply
    15,414.14x = 23,009.68 × 13,545.80
  4. Step 4: Simplify right side
    15,414.14x = 311,684,523.34
  5. Step 5: Solve for x
    x = 311,684,523.34/15,414.14
  6. Step 6: Final answer
    x = 20,220.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.